Quest Red

When several patients in a small ICU facility die, investigators turn to forensics to solve the mystery.

A security guard finds an employee dead in the driver's seat of his car. Police suspect that someone was illegally hunting and shot the victim.

Officers carrying out a night time operation take part in major raids at different locations, and police are called to a petrol station where a man is being refused alcohol.

Officers are forced to hit their panic buttons as a house raid turns ugly, and officers are hot on suspects heels after a police dog indicates the presence of drugs.

In summer 2014, a drink thrown in a Manchester nightclub triggered a gangland feud that caused years of ruthless violence, with deadly consequences.

Hiding a body can be tricky - it's sometimes easier to obscure the circumstances of death, turning murder into suicide or blaming it on someone else.

Contract killings arose out of the need to establish the perfect alibi, hiring someone can deflect guilt. Forensic science is changing this.

Mobile phones, CCTV and cashpoints can track virtually every human move. We see exactly how this aids murder investigations.

When doctor's wife Christine is murdered in her stables detectives struggle to identify a killer who has carefully covered his tracks. Who shot Christine.

Dear Katherine, It's Me The Killer. When 18-year-old Katherine Foster goes missing, terror strikes the heart of the University of South Alabama. Is there a killer in their midst.

When Michael Severance goes AWOL the community of San Angelo rallies around his new bride. But is there something more sinister behind his disappearance.

When a ranch hand is found dead in a river outside of Salt Lake City, investigators across two states must work together to catch the killer.

In 2020, Gretchen Anthony disappeared after being diagnosed with COVID-19. Investigators rely on recorded jailhouse phone calls to unravel the mystery.

Fishermen find a 27-year-old man shot to death on a river embankment. A jailhouse call leads investigators to a twisted love triangle that ended in murder.

On a March morning in Baltimore, the brutal stabbing and murder of 96-year-old Evelyn Murray-Bailey devastates the community.

A stray bullet kills 15-year-old La'Kyijah Williams, outraging Chief Eric Winstrom. CCTV shows a masked gunman, but witnesses refuse to talk.

Experts in body language, linguistics and forensic psychology examine how one of the biggest stars in British television and showbusiness got away with decades of sexual abuse.